Wrench.



M. ISTVAN.

WRENCH.

.' APPLICATION FILED MAR. 31. 1911. 1,000,81 1; Patented Aug. 15,1911.

//6 I8 F'iq. I.

WITNESSES: INVENTOR.

UNITED STATES PATENT OFFTGE.

' MAYER ISTVAN, or GOAL cnnrnn, PENNSYLVANIA.

WRENCH.

Specification of Letters Patent. Patented Aug, 15, 1911.

Application filed March 31,

1911. Serial No. 617,928.

ToaZZwhom it may concern:

Be it known that I, MAYER ISTVAN, a subject of the King of 'Hungary, residing at Coal Center, in the county of Washington and State of Pennsylvania, have invented certain new and useful Improvements in Wrenches, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to wrenches and has for its object to provide a tool of such class in a manner as hereinafter set forth with means for conveniently shifting the shank of the wrench thereby adjustably positioning the jaw elements with respect to each other. I

A further object of the invention is to provide a wrench including a movable jaw with means in a manner hereinafter set forth to conveniently adjust the fixed'jaw with respect to the movable jaw and furthermore with means to enable the adjusting of the movable jaw with respect to the fixed jaw.

Further objects of the invention are to provide a wrench which is comparatively simple in its construction and arrangement, strong, durable, efiicient in its use, readily. assembled, and comparatively inexpensive to manufacture. I

With the foregoing and other objects in view, the invention consists of the novel construction, combination and arrangement of parts as hereinafter more specifically described and illustrated in the accompanying drawings wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

detail broken away, and, Fig. 5 is a rear elevation.

Referring to the drawings by reference characters, 1 denotes a handle. having one end thereof hollowed to reduce the weight of the handle. The latter is formed with a longitudinally-extending bore 3 having a portion of its wall as at 4 recessed. The inner end of the handle l is reduced as at 5 to provide an annular shoulder 6. The reduced end 5 of the handle has its free terminus formed with a laterally-extending (zinnglar flange 6 thereby providing a shoul- The shank of the wrench includes a rec tangular portion 8 and a cylindrical portion 9 which has a part thereof threaded as at 10 for engagement with the threads for the handle and by such an arrangement when the handle 1 is revolved in one direction, the shank will be shifted outwardly carrying the fixed jaw 11 therewith and when the handle is revolved in the opposite direction, the shank will be moved inwardly until its movement is arrested by the engagement of the shoulder 12 with the inner end of the handle 1.

Mounted upon the shoulder 6 and surrounding the reduced portion 5 of the handle is a flanged collar 13 formed with peripheral threads 14:. The flange of the collar 13 is indicated by the reference character 15. The collar 13 is of a length as to extend in close proximity to the shoulder 7, and the length andfit of the collar 13 with respect to the reduced end 5 of the handle is such as not to interfere with the revolving of the handle when occasion so requires.

The reference character 16 denotes a casing including a pair of side and a front wall, the side walls being indicated at 17, and the front wall at 18, (see Fig. 3). The casing 16 is mounted against the :shank of the wrench and terminates at its inner end in a collar 19, which incloses the flange 6 and is formed with interior threads 20 for engagement with the threads 14 whereby the casing is coupled with the handle 1. The shoulders 6 and 7 of the handle maintain the collar 13 in position. The collar 13 is formed of two sections so it can be mounted in position upon the reduced end 5 of the handle.

The outer face of the front wall 18 of the casing 16 is formed with a series of teeth 21 adapted to be engagedby a springthe movable jaw 23,'the latter being mount. ed upon the casing 16 and having its rear portion 24 opposing the rear edge of the' shank of the wrench. The movable jaw is provided with an'opening for the passage of" the casing 16. The pivot for the, pawl 22 is indicated by the reference character 25 and the spring by "the reference-character 26. The pawl 22 is extended from the movable jaw 23 so as-to provide a finger grip as at 26, 27 for convenient manipulation of saidpawl.

To limit the outward movement of the I shank of the wrench, the portion 8 of the latter is provided with a transversely-ex tending pin 28 which projects from each side of said portion 8 and the said projecting ends of the pin 28 extend in a pair of longitudinally-extending slots 29 formed in the side walls'17 of the casing 16. The end walls of the slots 29 in connection with the projecting ends of the pin 28 are adapted to limit the outward movement of the shank as is obvious.

By the construction of wrench heretofore set forth, the fixed jaw 11 can be adjusted independently of the movable jaw and the latter can be adjusted independently of the fixed jaw. The adjusting of the fixed jaw 11 with respect'to the movable jaw 23 is had by rotating the handle 1 to shift the shank inwardly or outwardly as the case may be, while the adjusting of the movable jaw is done manually when the dog or pawl 27 is moved from engagement with the teeth 21 of the casing 16. When the dog 27 is in engagement with the teeth 21, the movement of the jaw 23 toward the handle 1 is arrested.

What I claim is:

1. A wrench comprising a shank provided with a fixed jaw, a casing mounted against the shank and having its inner end formed with a collar, a revoluble handle having its inner end reduced and provided with a shoulder and a flange, the flange being positioned at the free terminus of the reduced.

end, said flange abutting against the shank and casing, said reduced end surrounded by said collar, an annular member interposed between said flange and shoulderand engaging with the inner face of said collar, said collar abutting against said annular member and said flange, means whereby the shank can be shifted outwardly and inwardly with respect to the handle, an adjustable jaw mounted upon said casing, and

of the shank.

means for fixing said adjustable jaw in its adjusted position.

2. A wrench comprising a shank provided with a fixed jaw, a casing mounted against the shank and having its inner end formed 'with a collar, a revoluble handle having its inner end reduced and provided with a pressed pivoted pawl 22 which is carried by shoulder and a flange, the flange being positioned; atgthe free terminus of the reduced end, said flange abutting against the shank andcasing, said reduced end surrounded *by -sa1d collar, an annular member 1nter posed between said flange and shoulder and engaging with the inner face of said collar, said collar abuttmg against sald annular -member and said flange, means whereby the shank can be shifted outwardly and inwardly with respect to the handle, anad justable jaw mounted upon said casing,

means for fixing sa'idadjustable jaw in its adjusted position, said casing provided with a'pair of slots, and means carried by the shank and extending through said slots and capable ofengaging the inner end wall of the slots for limiting the outward movement 3. A wrench comprising a shank provided with a fixed jaw, a casing mounted against the shank and having its inner end formed with a collar, a revoluble handle: having its.

inner end reduced and provided with a shoulder and a flange, the flange being positioned at the free terminusof. the reduced end, said flange abutting against the shank:

and casing, said reduced end surrounded by said collar, an annular member interposed between said flange and shoulder and engaging with the inner face of said collar, said collar abutting against said annular member and said flange,means whereby the shank can be shifted outwardlyand inwardly with respect to the handle, said casing being yoke-shaped in cross-section, the forward wall of said casing having its outer face toothed, an adjustable jaw mounted upon said casing, and means carried by the ad j ustable jaw and adapted to engage the teeth of said casing for fixing the adjustable jaw in its adjusted position; I i

4:- A wrench comprising a' shank provided with a fixed jaw, a casing mounted against the shank and having its inner end formed with a collar, a revoluble handle having its inner end reduced -and provided with a' shoulder and a flange, the flange being positioned at the free terminus of the reduced end, said flange abutting against the shank and casing, said reduced end surrounded by said collar, an annular member interposed between said flange andfshoulder and engaging with the inner. face of said collar,

said collar abutting against said, annular member and saidflange, means whereby the shank can be shifted outwardly and inwardly with respect to the handle, said casing being yoke-shaped in cross-section, the ing the outward movement of the shank forward wall of said casing having its outer with respect to the outer end of the casing. 10 face toothed, an adjustable jaw mounted In testimony whereof I aflix my signature upon said casing, and means carried by the in the presence of two witnesses.

adjustable jaw and adapted to engage the MAYER ISTVAN. teeth of said casing for fixing the adjustable Witnesses:

jaw in its adjusted position, and said casing WKMOLINKOR TANEY,

and shank provided with means for limit- HoLJR G'YOEGY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

